Mold for fence-posts.



S. L. CLARK.

MOLD FOR FENCE POSTS.

APPLICATION FILED FEB. 21,1913.

Patented Sept. 16, 1913.

SPENCER L. CLARK, OF HALE, T/IICHIGAN.

MOLD FOR FENCE-POSTS.

Specification of Letters Patent.

Application filed February 21, 1913.

atcnted Sept. 16,1913. Serial No. 749,997.

To all whom it may concern Be it known that I, SrnNonn L. CLARK, acitizen of the United States, residing at Hale, in the county ofIosco,State o'l Michigan, have invented certain new and usefulImprovements in Molds for Fence-Posts; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it a )pertains tomake and use the same.

This invention relates to improvements in artificial stone posts, andthe method employed in making same.

The principal object of the invention is to provide a simple artificialstone post having a wooden portion to which the fence wires may benailed, and the peculiar manner in which the wooden portion of the postis formed.

Other objects and advantages will be apparent from the followingdescription and with particular reference to the accompanying drawings.

In the drawings: Figure 1 is a top plan View of my mold used in formingthe posts. Fig. 2 is a vertical longitudinal section on the line 2-2 ofFig. 1. Fig. 3 is a transverse scction on the line 33 of Fig. 2. Fig. 4is a perspective view of the finished post.

Referring particularly to the drawings, 10 represents the outer casingof the mold, in the upper portion of which is termed a straight bore 11,said bore extending a distance down into the mold sutlioient to form thebase of the post. Extending from the lower end of the straight bore 11is a downwardly tapering here 19. which extends to the bottom of themold. In one wall of the tapering bore is tormed a dove-tailed groove13, running the entire length of the said bore, and into which is p needa dove-tailed strip 14, having on one side the rib 15. This rib 15, whenthe strip is seated within the groove is adapted to project into thebore. A conical member 16 is provided for insertion within the mold,said member being of a length equal to the length of the mold casing 10.

In molding a post with my mold, the strip 14: is positioned in thegroove, and the conical or tapering hore as well as the straight hore istilled with plastic material, or rather partially filled when theconical mcmher 1.6 is inserted therein, the point inserting itself inthe plastic material at the hottom of the mold. A suitahle hrace '17 isprovided at the top of the mold for engagement with the upper end at theconical member 16 to hold the said mcn'iher in a centered position, sothat the post will he of equal thickness in all parts of itscircumlcrence. The rib portion 15 of the strip l-l projecting into thetapered cavity torms a vertical opening in one side ot the taperedportion of the post, the purpose of which will he rcterrcd to later.

After the plastic material has become slightly set, the conical memhcr1:) is removed ;l'rom the mold, and the cavity within the plasticmaterial is then filled with sawdust or the like and clamped down underheavy pressure, so that the material will be highly com n'cssed into asolid mass. It will he noted that the tongue 15 :torms an opening in oneside o't'the tapered portion of the post, and when the sawdust is packedinto the cavity of the post, said sawdust will extend out into theopening. so that nails or staples may he rcadilv driven thereinto tohold wires to the post.

In Fig. l the c is shown a view of a complcted post which comprises thecylindrical base portion '18, and the upwardly tapering post, portionproper 19, in which is formed the elongated opening 510, through whichstaples or nails may be driven into the interior packing, and sawdust2t.

From the torcgoing it will be seen that I have provided a simple postwhich combines the features of the artificial post which is proofagainst decay. and has tl 1 advantage of the wood post, in that wiresmay be readily nailcd thereto.

.Vhat is claimed is:

A mold for fence posts comprising :1 casing having a cylindrical bore inthe upper portion and a tapering here in the lower portion, one wall ofsaid tapering bore being provided with a longitudinz'il dove-tailedslot, a TGH'IOVHblO dove-tailed strip seated within the groove andhaving an outwardly projecting longitudinal rib formed thereon Intestimony whereof, I afix my signasaid rib progect-ing into the taperedcavity, ture, in the presence of two Witnesses. and a conical memberseated Within the T mold casing to form a cavity the entire SPEI GERCLARK length of the post, the rib of said strip Witnesses:

forming an elongated opening vertically in VICTORIA NUNN, the taperedportion of the post. ANNA KELLY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

